Question

x + y = 4

x - 2y = -5

If the first equation is multiplied by 2 and then the equations are added, the result is

Answer 1

3x= 13
3x= 3
x= 3
possible answers^

Answer 2

x = 1
y =3

Answer 3

Which answer?

Answer 4

both are the answers.

Answer 5

3x= 13?
3x= 3?
x= 3?

Answer 6

whn u divide 3 by 3 the answer is 1.

Answer 7

so x= 3?

Answer 8

x = 1

Answer 9

I need to know which answer i pick.

Answer 10

Take it step by step...if you try to rush right to the answer it's easier to make mistakes.
x + y = 4 so multiplying that by two gets you to the new equation 2x + 2y = 8.
Add that to x - 2y = -5.
Now you have 2x + x + 2y - 2y = 8 - 5
That's 3x = 3; divide both sides by 3 and you get x = 1...
Then you can put your answer for x back into either equation and get the answer for y.
Take it slow!

Answer 11

x = 1


look, whn u divide 3 by 3, the answer is 1
so x = 1